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公开(公告)号：US11703650B2
公开(公告)日：2023-07-18
申请号：US17335025
申请日：2021-05-31
Applicant: DELTA ELECTRONICS, INC.
Inventor： Meng-Sheng Chang , Chien-Fu Tseng
IPC: H05B47/105 , G02B6/44 , G01R31/327
CPC classification number: G02B6/4429 , G01R31/327 , H05B47/105
Abstract: An optical fiber protection system includes an optical fiber, a light source, a protection circuit, a sensor, and a controller. The light source is configured to transmit a signal to the optical fiber. The protection circuit extends along a length direction of the optical fiber. The sensor is electrically connected to the protection circuit. The controller is electrically connected to the sensor and the light source.
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公开(公告)号：US20190240598A1
公开(公告)日：2019-08-08
申请号：US16042438
申请日：2018-07-23
Applicant: DELTA ELECTRONICS, INC.
Inventor： Meng-Sheng Chang , Hui-Hsiung Wang
CPC classification number: B01D19/0042 , F28F23/02 , F28F2265/18
Abstract: A liquid-cooling device having a liquid-gas isolation mechanism includes a tank, a first conduit, a second conduit, and a liquid-gas isolation mechanism. The tank has an outer wall, a first end, and a second end, and a liquid storage space is surrounded and defined by the outer wall, the first end, and the second end. The first conduit and the second conduit are partially disposed in the tank, and are respectively used for leading the cooling liquid in and out. The liquid-gas isolation mechanism includes at least a baffle disposed in the liquid storage space, and a plurality of flow holes are defined by the baffle and the outer wall. The first conduit, at least one flow hole, and the second conduit are configured as a flow path. Therefore, the gas is prevented from being brought out from the tank by the second conduit and entering the liquid-cooling pump.
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公开(公告)号：US09976879B2
公开(公告)日：2018-05-22
申请号：US15014193
申请日：2016-02-03
Applicant: DELTA ELECTRONICS, INC.
Inventor： Meng-Sheng Chang , Keh-Su Chang , Hui-Hsiung Wang , Ching-Chao Chen
CPC classification number: G01D5/3473 , G01P3/36
Abstract: A color wheel rotation speed detecting module is disclosed and includes a color wheel, a motor, a rotation speed detector and a processor. The color wheel includes a first segment and at least one second segment. The motor drives the color wheel to rotate. The rotation speed detector includes an emitter and a receiver. The emitter outputs a light signal to the first segment or the second segment of the color wheel when the color wheel is rotated. When the receiver receives the light signal reflected from the second segment, the receiver outputs a detecting signal correspondingly. When the light signal passes through the first segment and the receiver fails to receive the light signal, the receiver interrupts the output of the detecting signal. The processor receives the detecting signal from the receiver, and obtains the rotating speed of the color wheel according to the detecting signal varied with time.
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Patent Agency Ranking
公开(公告)号：US11422445B2
公开(公告)日：2022-08-23
申请号：US16504320
申请日：2019-07-07
Applicant: DELTA ELECTRONICS, INC.
Inventor： Meng-Sheng Chang , Hui-Hsiung Wang
Abstract: A projector protection method includes: multiple temperature sensors detect temperatures of multiple areas in a projector to obtain multiple temperature parameters respectively; a processor lowers an output power of a laser source when any temperature parameter corresponding to one of areas falls into corresponding one of multiple first temperature intervals and multiple fans in the projector are set to a maximum speed; and the processor turns off the laser source when any temperature parameter corresponding to one of areas falls into corresponding one of multiple second temperature intervals. The second temperature interval and the first temperature interval corresponding to the same temperature parameter are different from each other.
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公开(公告)号：US10365547B2
公开(公告)日：2019-07-30
申请号：US15688246
申请日：2017-08-28
Applicant: Delta Electronics, Inc.
Inventor： Meng-Sheng Chang , Hui-Hsiung Wang
Abstract: A digital micro-mirror unit is arranged on a circuit board. A digital micro-mirror device mask surroundingly covers the digital micro-mirror unit. A thermo-insulation element is arranged between the digital micro-mirror unit and the digital micro-mirror device mask. The digital micro-mirror unit is thermally insulated against the digital micro-mirror device mask through the thermos-insulation element. A thermoelectric cooler (TEC) is thermally connected to the digital micro-mirror unit. A thermo-conductive body is attached on the hot side of the TEC. Therefore the digital micro-mirror unit can meet temperature requirements of safety standards and avoid reducing its service life.
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6.发明申请CONTROLLING METHOD FOR THERMOELECTRIC COOLING DEVICE AND HEAT-DISSIPATING MODULE EMPLOYING SAME 审中-公开用于热电冷却装置的控制方法和使用它的散热模块公开(公告)号：US20150059358A1
公开(公告)日：2015-03-05
申请号：US14149440
申请日：2014-01-07
Applicant: DELTA ELECTRONICS, INC.
Inventor： Meng-Sheng Chang
IPC: F25B21/02
CPC classification number: F25B21/02 , F25B2321/0212 , F25B2700/2106 , F25B2700/2107
Abstract: A controlling method for a thermoelectric cooling device is provided. The thermoelectric cooling device has a cold side and a hot side. After the thermoelectric cooling device is enabled, a temperature of the cold side and an ambient temperature around the thermoelectric cooling device are acquired. By judging whether the ambient temperature is higher than or equal to a preset reference temperature, an initial value of a duty cycle corresponding to an electric energy to be received by the thermoelectric cooling device is set. Then, a judging step is performed to judge whether the temperature of the cold side is higher than or equal to the ambient temperature. If the judging condition is satisfied, the duty cycle is increased by a specified percentage. If the judging condition is not satisfied and the duty cycle is higher than 0%, the duty cycle is decreased by the specified percentage.
Abstract translation: 提供了一种用于热电冷却装置的控制方法。 热电冷却装置具有冷侧和热侧。 在启用热电冷却装置之后，获得冷侧的温度和热电冷却装置周围的环境温度。 通过判断环境温度是否高于预先设定的基准温度，设定与热电冷却装置接收的电能对应的占空比的初始值。 然后，执行判断步骤，判断冷侧的温度是否高于或等于环境温度。 如果满足判断条件，占空比增加一定百分比。 如果判断条件不满足且占空比高于0％，则占空比减少规定的百分比。
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公开(公告)号：US09207524B2
公开(公告)日：2015-12-08
申请号：US14144217
申请日：2013-12-30
Applicant: DELTA ELECTRONICS, INC.
Inventor： Meng-Sheng Chang
CPC classification number: G03B21/16 , G03B21/2026 , H04N9/3144 , H04N9/3194
Abstract: A fan control method for a projection apparatus is provided. The method includes the following steps. When the lamp is switched from a working state to a power-off state, the fan device is enabled. When a temperature of the lamp is reduced to a first predetermined temperature, the fan device is disabled. When the temperature of the lamp is reduced to be lower than a second predetermined temperature, the fan device is enabled again. When the temperature of the lamp is reduced to a re-ignition temperature, the fan device is disabled.
Abstract translation: 提供了一种用于投影设备的风扇控制方法。 该方法包括以下步骤。 当灯从工作状态切换到关机状态时，风扇设备被使能。 当灯的温度降低到第一预定温度时，风扇装置被禁用。 当灯的温度降低到低于第二预定温度时，风扇装置再次启用。 当灯泡的温度降低到再点火温度时，风扇设备被禁用。
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公开(公告)号：US20150042962A1
公开(公告)日：2015-02-12
申请号：US14144217
申请日：2013-12-30
Applicant: DELTA ELECTRONICS, INC.
Inventor： Meng-Sheng Chang
IPC: G03B21/16
CPC classification number: G03B21/16 , G03B21/2026 , H04N9/3144 , H04N9/3194
Abstract: A fan control method for a projection apparatus is provided. The method includes the following steps. When the lamp is switched from a working state to a power-off state, the fan device is enabled. When a temperature of the lamp is reduced to a first predetermined temperature, the fan device is disabled. When the temperature of the lamp is reduced to be lower than a second predetermined temperature, the fan device is enabled again. When the temperature of the lamp is reduced to a re-ignition temperature, the fan device is disabled.
Abstract translation: 提供了一种用于投影设备的风扇控制方法。 该方法包括以下步骤。 当灯从工作状态切换到关机状态时，风扇设备被使能。 当灯的温度降低到第一预定温度时，风扇装置被禁用。 当灯的温度降低到低于第二预定温度时，风扇装置再次启用。 当灯泡的温度降低到再点火温度时，风扇设备被禁用。
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